MARKWEST ENERGY PARTNERS L P

CUSIP: 570759100 Class: UNIT LP PARTN

Cambridge Investment Research Advisors, Inc.'s Holding History (CIK: 0001419186)

Note: Option positions (PUT/CALL) are excluded.

Q3 2015
Shares 10,966 Value ($000) $471 Avg Close — Range —
Q2 2015
Shares 9,902 Value ($000) $558 Avg Close — Range —
Q1 2015
Shares 9,644 Value ($000) $637 Avg Close — Range —
Q4 2014
Shares 10,007 Value ($000) $672 Avg Close — Range —
Q3 2014
Shares 9,263 Value ($000) $712 Avg Close — Range —
Q2 2014
Shares 8,415 Value ($000) $602 Avg Close — Range —
Q1 2014
Shares 8,033 Value ($000) $525 Avg Close — Range —
Q4 2013
Shares 6,617 Value ($000) $438 Avg Close — Range —
Q3 2013
Shares 5,703 Value ($000) $412 Avg Close — Range —
Q2 2013
Shares 6,654 Value ($000) $445 Avg Close — Range —